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16-25 savollar- qiyinlik darajasi 2. Har bir to`g`ri javob 3,2 ball bilan baholanadi.
16) 2021! soni nechta nol bilan tugaydi?
A) 1000 B) 200 C)603 D) 503
Markazi (0; 0) nuqtada bo`lgan aylanadagi A (0; 2) nuqtani soat mili harakati yo`nalishida aylana bo`ylab 600 ga burish natijasida hosil bo`lgan nuqtaning koordinatalari yig`indisini toping.
A) 1 B) 1- C) 1+ D) 2
18) Rombning diagonallari 2 va 3 bo`lsa, unga ichki chizilgan doiraning yuzini toping.
A) π B) π C) π D) π
19) To`g`ri burchakli uchburchakning o`tkir burchagi 600. Shu burchakka yo`pishgan kateti uzunligi 2 cm ga teng bo`lsa, uning eng katta medianasi uzunligini (cm) toping.
A) 13 B) 2 C) 3 D)
20) Agar ( +1)=1 bo’lsa, (x+y)2 ning qiymatini toping
A) 9 B) 25 C)16 D) 0
21) Hisiblang
A) 1 B) 2 C)6 D) 4
22) 1256 ·154 ·20482 ko’paytmaning qiymati nechta xonali son bilan tugaydi.
A) 22 B) 24 C)26 D) 34
23) Tenglamani yechimlar yig’indisini toping. (x2-20212)2 -8084x -1=0
A) 4042 B) 4000 C)2021 D) 4041
24) Dastlabki uchta raqamining yig’indisi 20 ga oxirgi uchta raqamining yig’indisi esa 17 ga teng bo’lgan turli to’rt honali sonlar nechta .
A) 18 B) 28 C)16 D) 35
25) Bir guruhda 3 ta qiz ikkinchi guruhda 3 ta yigit bor bir qiz va bir yigitni necha xil usulda tanlasa bo’ladi
A) 10 B) 20 C)6 D) 9
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